EXAM 3: MSCI 102 Exam 3
2025|Complete Exam Test |Recently
Testing Real Exam
Questions|Verified Solutions (100%
correct)
Save
Practice questions for this set
Learn
Studied 7 terms
Nice work, you're crushing it
Continue studying in Learn
,Terms in this set (77)
largest group of aquatic vertebrates
Fish
with over 20,000 species
Osteichthyes bony fish
Ray Finned: most fish are this type fins
are supported by bony structures
Lobe Finned: fins are long, fleshy,
types of bony fish
muscular, supported by central core
of bones thought to be ancestors of
amphibians
jawless fish
Class Agnatha Hagfish: ocean scavengers
(bony fish unique defense mechanisms and
ancestors) predation slimy snake like S shaped
spasms with predation
sharks, skates, rays old sharks
Class "chondros"=cartilage
Chondrichthyes "icthys" = Skeleton is made of tough,
elastic material called cartilage
350 species, among the largest
Sharks vertebrates, are NEGATIVELY
BOUYANT, will sink if not swimming
, caudal fin used for propulsion,
pectoral fin aids in lift
vertebrates
Shark body plan fusiform = torpedo
shape
Shark senses sight- can regulate light
Shark Anatomy
entering the retina
can see in color smell- use two
olfactory rosettes hearing- low
frequency and irregularly pulsed
sounds, attracted to prey by vibrations
in water
gills, backbone, paired fins, single
Fish Anatomy loop circulation, gils, skin, respiration,
adaptations
used for swimming and protection
Paired fins
Some are unpaired: dorsal
Heart pumps blood through a single
loop throughout entire body
Single Loop
clockwise
Circulation
starts at heart> head>
organs/body>tail> back to heart
2025|Complete Exam Test |Recently
Testing Real Exam
Questions|Verified Solutions (100%
correct)
Save
Practice questions for this set
Learn
Studied 7 terms
Nice work, you're crushing it
Continue studying in Learn
,Terms in this set (77)
largest group of aquatic vertebrates
Fish
with over 20,000 species
Osteichthyes bony fish
Ray Finned: most fish are this type fins
are supported by bony structures
Lobe Finned: fins are long, fleshy,
types of bony fish
muscular, supported by central core
of bones thought to be ancestors of
amphibians
jawless fish
Class Agnatha Hagfish: ocean scavengers
(bony fish unique defense mechanisms and
ancestors) predation slimy snake like S shaped
spasms with predation
sharks, skates, rays old sharks
Class "chondros"=cartilage
Chondrichthyes "icthys" = Skeleton is made of tough,
elastic material called cartilage
350 species, among the largest
Sharks vertebrates, are NEGATIVELY
BOUYANT, will sink if not swimming
, caudal fin used for propulsion,
pectoral fin aids in lift
vertebrates
Shark body plan fusiform = torpedo
shape
Shark senses sight- can regulate light
Shark Anatomy
entering the retina
can see in color smell- use two
olfactory rosettes hearing- low
frequency and irregularly pulsed
sounds, attracted to prey by vibrations
in water
gills, backbone, paired fins, single
Fish Anatomy loop circulation, gils, skin, respiration,
adaptations
used for swimming and protection
Paired fins
Some are unpaired: dorsal
Heart pumps blood through a single
loop throughout entire body
Single Loop
clockwise
Circulation
starts at heart> head>
organs/body>tail> back to heart
